Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a44ccb02de68336…

MALICIOUS

PDF

34.8 KB Created: 2020-09-03 15:48:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5192324258ec60c3337d786dff110767 SHA-1: a1845d2e29fc8aa1e2b20f2058a2e63627838f6e SHA-256: 6a44ccb02de683369fee36e6dccee5e682819709d0d7c0d7bc931209eaf89fdb
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, disguised as an application form. This indicates a phishing attempt to redirect users to a malicious site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.me/wix?keyword=kerala+water+authority+application+form
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/eb4c03_3fbe2d791f174da7b762591c06228bb5.pdf
    • https://static.usrfiles.com/ugd/41a0b6_3633055f14c64854a99994c2c6853589.pdf
    • https://static.usrfiles.com/ugd/270e53_71d32cd8f00546cab055ad299a597237.pdf
    • https://static.usrfiles.com/ugd/f09a9d_72d02ee5d2fa4041a2b26c846187fe95.pdf
    • https://static.usrfiles.com/ugd/98857b_6ded5ab38ba74ccfad8596658bdef244.pdf
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/fozudenupu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/49481566767.pdf
    • https://cdn.shopify.com/s/files/1/0428/8980/5980/files/kabofup.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4171/files/87289407631.pdf
    • https://static.usrfiles.com/ugd/c33f71_13a1d095a24e425da08c109e19661c36.pdf
    • https://static.usrfiles.com/ugd/217d68_3a199c14a4644ddd852a1ca7c9da5b75.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048b7.bin
fcd6c228ce8afa802f122e833c67235879b3cfb64fee81b760f0ee90037b497b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48B7 5240 bytes
font_01_sfnt_off00005a7e.bin
db268642b6acaf1537f88624035b0aa1b6199ee20822d2c460dce75d49bee9a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7E 10616 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.